Many 'popular musicians' are compensated/sponsered by instrument manufacturers. Perhaps the more popular the musicians are, the more compensation by the companies. This does not denigrate the instruments themselves but it does call into question the idea that if a popular musician is playing a particular brand then it is sufficient reason to buy the same, especially when brands on stage change because sponsership has.

It's one more thing potential customers have to take care about; like posts recommending commercial web sites. Buyacousticguitaronline.com, the web site referenced above "is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon."